s1 = '20'
num = int(s1)
print(s1, type(s1))
print(num, type(num))
print('----------------------')
s2 = '12.5'
num1 = float(s2)
print(s2, type(s2))
print(num1, type(num1))
print('----------------------')
num3 = 12
s3 = str(num3)
print(num3, type(num3))
print(s3, type(s3))
